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Contents
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average snowfall
- Average snowfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
Weather in January
January, the same as December, is a cool winter month in Gilliam, Louisiana, with temperature in the range of an average low of 37.8°F (3.2°C) and an average high of 53.6°F (12°C). With its high average temperature of 53.6°F (12°C) and a low of 37.8°F (3.2°C), January is regarded as the coldest month. Weather in January »
Weather in February
February, the last month of the winter in Gilliam, is a refreshing month, with an average temperature varying between 57.4°F (14.1°C) and 41.5°F (5.3°C). The average high-temperature in February, at a refreshing 57.4°F (14.1°C), reveals a modest deviation from January's 53.6°F (12°C). Weather in February »
Weather in March
March, the first month of the spring in Gilliam, is an enjoyable month, with an average temperature ranging between max 66.7°F (19.3°C) and min 48.4°F (9.1°C). Observing a rise in March, the average high-temperature goes from February's moderate 57.4°F (14.1°C) to a still refreshing 66.7°F (19.3°C). Weather in March »
Weather in April
April in Gilliam, Louisiana, is a moderately hot spring month, with an average temperature varying between 75.9°F (24.4°C) and 54.5°F (12.5°C). The shift from March to April is marked by an increase in the average high-temperature, moving from an enjoyable 66.7°F (19.3°C) to a moderately hot 75.9°F (24.4°C). Weather in April »
Weather in May
The last month of the spring, May, is also a moderately hot month in Gilliam, Louisiana, with an average temperature varying between 84°F (28.9°C) and 63.1°F (17.3°C). May's arrival brings a slight change in high-temperatures, adjusting from 75.9°F (24.4°C) in April to a still moderately hot 84°F (28.9°C). Weather in May »
Weather in June
The first month of the summer, June, is a hot month in Gilliam, Louisiana, with temperature in the range of an average high of 92.1°F (33.4°C) and an average low of 70.7°F (21.5°C). With the onset of June, Gilliam's average high-temperature sees a modest rise, moving from May's moderately hot 84°F (28.9°C) to a hot 92.1°F (33.4°C). Weather in June »
Weather in July
July in Gilliam, Louisiana, is a sweltering summer month, with temperature in the range of an average low of 73.2°F (22.9°C) and an average high of 95°F (35°C). With its high average temperature of 95°F (35°C) and a low of 73.2°F (22.9°C), July is regarded as the warmest month. July's average heat index is estimated at a burning hot 122°F (50°C). Weather in July »
Weather in August
The last month of the summer, August, is also a hot month in Gilliam, Louisiana, with an average temperature varying between 94.6°F (34.8°C) and 73°F (22.8°C). August welcomes an average high-temperature of a hot 94.6°F (34.8°C), not much different from the preceding month. Weather in August »
Weather in September
September, the first month of the autumn in Gilliam, is also a hot month, with an average temperature ranging between max 88.7°F (31.5°C) and min 67.1°F (19.5°C). In Gilliam, the beginning of September is marked by a marginally lowered average high-temperature, shifting from August's hot 94.6°F (34.8°C) to a still tropical 88.7°F (31.5°C). Weather in September »
Weather in October
October, the same as September, is a moderately hot autumn month in Gilliam, Louisiana, with an average temperature fluctuating between 56.5°F (13.6°C) and 76.6°F (24.8°C). Arrival of October comes with a reduction in the average high-temperature, falling from a hot 88.7°F (31.5°C) in September to a warm 76.6°F (24.8°C). Weather in October »
Weather in November
November, the last month of the autumn in Gilliam, is another comfortable month, with an average temperature fluctuating between 46.8°F (8.2°C) and 63.5°F (17.5°C). November brings a decrease in the average high-temperature, shifting from a warm 76.6°F (24.8°C) in October to an enjoyable 63.5°F (17.5°C). Weather in November »
Weather in December
The first month of the winter, December, is also a moderate month in Gilliam, Louisiana, with an average temperature fluctuating between 55.8°F (13.2°C) and 41.2°F (5.1°C). The onset of December is marked by a minor decrease in temperature, transitioning from 63.5°F (17.5°C) in November to a still refreshing 55.8°F (13.2°C). Weather in December »
Updated: Jul 6, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the coldest month?
January brings the lowest temperatures, with an average high of 53.6°F (12°C) and an average low of 37.8°F (3.2°C).
How many days does it rain?
Throughout the year, there are 149.6 rainfall days, and 35.63" (905mm) of precipitation is accumulated.
When does it snow?
Months with snowfall are January through March and December.
When does it snow the most?
January is the month with the most snowfall. Snow falls for 0.9 days and accumulates 0.59" (15mm) of snow.
How much does it snow?
Throughout the year, there are 3.1 snowfall days, and 1.26" (32mm) of snow is accumulated.
What is the month with the lowest UV index?
The months with the lowest UV index in Gilliam are January, February and December, with an average maximum UV index of 3.
What is the most humid month?
With an average relative humidity of 81%, February is the most humid month.
What is the month with the least sunshine?
The months with the least sunshine in Gilliam are February and December, with an average of 5.1h of sunshine.
When is Daylight Saving Time (DST)?
On Sunday, March 10. 2024, at 2:00 am, Daylight Saving Time starts, and the time zone changes from CST to CDT. Daylight Saving Time ends Sunday, November 3. 2024, at 2:00 am, and the time zone reverts from CDT to CST.
What is the rainiest month?
April is the month with the most rainfall. Rain falls for 13.7 days and accumulates 4.84" (123mm) of precipitation.
When it does not snow?
In Gilliam, snow does not fall in April through November.
When are the longest days?
With an average of 14h and 18min of daylight, June has the longest days of the year.
When is the highest UV index?
June through August, with an average maximum UV index of 7, are months with the highest UV index.
What time of the year is the hottest in Gilliam?
In Gilliam, the average highest temperatures are observed in July, with a high of 95°F (35°C) and a low of 73.2°F (22.9°C).
What is the least humid month?
With an average relative humidity of 67%, August is the least humid month in Gilliam.
What month has the most sunshine?
With an average of 10.5h of sunshine, August has the most sunshine of the year.
What is the driest month?
September is the month with the least rainfall. Rain falls for 11.4 days and accumulates 1.85" (47mm) of precipitation.
What is the month with the shortest days?
December has the shortest days of the year, with an average of 10h and 0min of daylight.
Average temperature
Gilliam, LA
The warmest month (with the highest average high temperature) is July (95°F).
The month with the lowest average high temperature is January (53.6°F).
The month with the highest average low temperature is July (73.2°F).
The coldest month (with the lowest average low temperature) is January (37.8°F).
Average pressure
Gilliam, LA
- Average pressure in January:
30.16"Hg - Average pressure in February:
30.1"Hg - Average pressure in March:
30.06"Hg - Average pressure in April:
29.95"Hg - Average pressure in May:
29.95"Hg - Average pressure in June:
29.93"Hg
- Average pressure in July:
29.97"Hg - Average pressure in August:
29.95"Hg - Average pressure in September:
29.98"Hg - Average pressure in October:
30.03"Hg - Average pressure in November:
30.13"Hg - Average pressure in December:
30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed
Gilliam, LA
- Average wind speed in January:
6.6mph - Average wind speed in February:
6.9mph - Average wind speed in March:
7.1mph - Average wind speed in April:
7.4mph - Average wind speed in May:
6.5mph - Average wind speed in June:
5.7mph
- Average wind speed in July:
5.2mph - Average wind speed in August:
5.1mph - Average wind speed in September:
5.2mph - Average wind speed in October:
6mph - Average wind speed in November:
6.4mph - Average wind speed in December:
6.3mph
The windiest month (with the highest average wind speed) is April (7.4mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).
Average humidity
Gilliam, LA
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (67%).
Average rainfall
Gilliam, LA
- Average rainfall in January:
2.68" - Average rainfall in February:
3.19" - Average rainfall in March:
3.74" - Average rainfall in April:
4.84" - Average rainfall in May:
3.07" - Average rainfall in June:
2.72"
- Average rainfall in July:
2.17" - Average rainfall in August:
2.32" - Average rainfall in September:
1.85" - Average rainfall in October:
2.91" - Average rainfall in November:
2.52" - Average rainfall in December:
3.62"
The wettest month (with the highest rainfall) is April (4.84").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days
Gilliam, LA
- Average rainfall days in January:
10.9 days - Average rainfall days in February:
12.7 days - Average rainfall days in March:
14.3 days - Average rainfall days in April:
13.7 days - Average rainfall days in May:
14.1 days - Average rainfall days in June:
12.8 days
- Average rainfall days in July:
13.9 days - Average rainfall days in August:
13.6 days - Average rainfall days in September:
11.4 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
10.3 days - Average rainfall days in December:
12.4 days
The month with the highest number of rainy days is March (14.3 days).
The month with the least rainy days is October (9.5 days).
Average snowfall
Gilliam, LA
The month with the highest snowfall is January (0.59").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days
Gilliam, LA
- Average snowfall days in January:
0.9 days - Average snowfall days in February:
1.3 days - Average snowfall days in March:
0.3 days - Average snowfall days in April:
0 days - Average snowfall days in May:
0 days - Average snowfall days in June:
0 days
- Average snowfall days in July:
0 days - Average snowfall days in August:
0 days - Average snowfall days in September:
0 days - Average snowfall days in October:
0 days - Average snowfall days in November:
0.2 days - Average snowfall days in December:
0.4 days
The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight / Average sunshine
Gilliam, LA
- Average daylight in January:
10h and 2min - Average daylight in February:
11h and 0min - Average daylight in March:
12h and 0min - Average daylight in April:
13h and 0min - Average daylight in May:
13h and 5min - Average daylight in June:
14h and 2min
- Average daylight in July:
14h and 1min - Average daylight in August:
13h and 2min - Average daylight in September:
12h and 2min - Average daylight in October:
11h and 2min - Average daylight in November:
10h and 3min - Average daylight in December:
10h and 0min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in January:
5h and 1min - Average sunshine in February:
5h and 1min - Average sunshine in March:
6h and 3min - Average sunshine in April:
8h and 4min - Average sunshine in May:
9h and 1min - Average sunshine in June:
10h and 1min
- Average sunshine in July:
10h and 2min - Average sunshine in August:
10h and 3min - Average sunshine in September:
9h and 2min - Average sunshine in October:
6h and 2min - Average sunshine in November:
5h and 4min - Average sunshine in December:
5h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 6min).
Average sunshine days
Gilliam, LA
- Average sunshine days in January:
17.7 days - Average sunshine days in February:
12.8 days - Average sunshine days in March:
14.2 days - Average sunshine days in April:
14.5 days - Average sunshine days in May:
14.5 days - Average sunshine days in June:
14.8 days
- Average sunshine days in July:
15.2 days - Average sunshine days in August:
15.2 days - Average sunshine days in September:
16.9 days - Average sunshine days in October:
19.9 days - Average sunshine days in November:
18 days - Average sunshine days in December:
16.6 days
The month with the most sunshine days is October (19.9 days).
The month with the least sunshine days is February (12.8 days).
Average UV index
Gilliam, LA
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover
Gilliam, LA
The month with the most cloud cover is February (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 28).
Average visibility
Gilliam, LA
The months with the highest visibility are January, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is February (5mi).
Gilliam, Louisiana, USA
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